The first two wave types, P and S, are called body waves because they travel or propagate through the body of Earth. The latter two are called surface waves they the travel along Earth's surface and their amplitude decreases with depth into Earth.
Toysmith Spring Ring Game. Here is a super fun game the kids might like. Nordstrom has this Toysmith Spring Ring Game for $14.98! That is down from the normal price of $24.99, for a 40% savings.
With regard to the cost of such a beautiful ring, the average price spent on a diamond engagement ring these days is somewhere between $2500 and $3000. Although many have heard the notion that a diamond engagement ring should be at least 1 carat in weight, this is a relatively new sentiment.